Allendale Weather Forecast

    • 35
    • 40

    Windy

    • 26
    • 55

    Rain/Snow

    • 30
    • 39

    Partly Sunny

    • 45
    • 50

    Windy

    • 44
    • 58

    Breezy

    • 46
    • 60

    Breezy

    • 43
    • 59

    Breezy

Today 18 Dec Natrona County Lower Elevations

Partly cloudy and windy. Near steady temperature in the mid 30s. Southwest Winds 20 to 30 Mph with Gusts up to 45 Mph.

Tonight 18 Dec Natrona County Lower Elevations

Partly cloudy and very windy. Lows around 30. Temperature rising into the lower 40s after midnight. Southwest Winds 30 to 40 Mph with Gusts up to 65 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Allendale Temperature Statistics

December Temperature

Casper, Natrona County International Airport (9.9 miles)

  • Lowest 1 December, 2025

    6.1 °F

  • Average December

    36.5 °F

  • Highest 14 December, 2025

    59 °F

Climate (2020–Present)

Casper, Natrona County International Airport (9.9 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    46.9 °F

  • Average High 2020–2025

    60.4 °F
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